<?php
/**
 * @link      http://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license   http://www.yiiframework.com/license/
 */

namespace zkc\gii\generators\module;

use Yii;
use yii\gii\CodeFile;
use yii\helpers\Html;
use yii\helpers\Inflector;
use yii\helpers\StringHelper;

/**
 * This generator will generate the skeleton code needed by a module.
 *
 * @property string  $controllerNamespace The controller namespace of the module. This property is read-only.
 * @property boolean $modulePath          The directory that contains the module class. This property is read-only.
 *
 * @author Qiang Xue <qiang.xue@gmail.com>
 * @since  2.0
 */
class Generator extends \yii\gii\Generator {
	public $moduleClass;
	public $moduleID;


	/**
	 * @inheritdoc
	 */
	public function getName() {
		return '模块生成器';
	}

	/**
	 * @inheritdoc
	 */
	public function getDescription() {
		return '生成骨架代码';
	}

	/**
	 * @inheritdoc
	 */
	public function rules() {
		return array_merge(parent::rules(), [
			[['moduleID', 'moduleClass'], 'filter', 'filter' => 'trim'],
			[['moduleID'], 'required'],
			[['moduleID'], 'match', 'pattern' => '/^[\w\\-]+$/', 'message' => 'Only word characters and dashes are allowed.'],
			[['moduleClass'], 'match', 'pattern' => '/^[\w\\\\]*$/', 'message' => 'Only word characters and backslashes are allowed.'],
			[['moduleClass'], 'validateModuleClass'],
		]);
	}

	/**
	 * @inheritdoc
	 */
	public function attributeLabels() {
		return [
			'moduleID'    => 'Module ID',
			'moduleClass' => 'Module Class',
		];
	}

	/**
	 * @inheritdoc
	 */
	public function hints() {
		return [
			'moduleID'    => 'This refers to the ID of the module, e.g., <code>admin</code>.',
			'moduleClass' => 'This is the fully qualified class name of the module, e.g., <code>app\modules\admin\Module</code>.',
		];
	}

	/**
	 * @inheritdoc
	 */
	public function successMessage() {
		if (Yii::$app->hasModule($this->moduleID)) {
			$link = Html::a('try it now', Yii::$app->getUrlManager()
			                                       ->createUrl($this->moduleID), ['target' => '_blank']);

			return "The module has been generated successfully. You may $link.";
		}

		$output = <<<EOD
<p>The module has been generated successfully.</p>
<p>To access the module, you need to add this to your application configuration:</p>
EOD;
		$code   = <<<EOD
<?php
    ......
    'modules' => [
        '{$this->moduleID}' => [
            'class' => '{$this->moduleClass}',
        ],
    ],
    ......
EOD;

		return $output . '<pre>' . highlight_string($code, true) . '</pre>';
	}

	/**
	 * @inheritdoc
	 */
	public function requiredTemplates() {
		return ['module.php', 'controller.php', 'view.php'];
	}

	/**
	 * @inheritdoc
	 */
	public function generate() {

		$this->moduleClass = 'backend\modules\\' . $this->moduleID . '\\' . Inflector::id2camel($this->moduleID) . 'Module';

		$files      = [];
		$modulePath = $this->getModulePath();
		$files[]    = new CodeFile(
			$modulePath . '/' . StringHelper::basename($this->moduleClass) . '.php',
			$this->render("module.php")
		);
		$files[]    = new CodeFile(
			$modulePath . '/controllers/' . Inflector::id2camel($this->moduleID) . 'BaseController.php',
			$this->render("controller.php")
		);
		$files[]    = new CodeFile(
			$modulePath . '/models/' . Inflector::id2camel($this->moduleID) . 'BaseModel.php',
			$this->render("model.php")
		);
		//$files[]    = new CodeFile(
		//	$modulePath . '/views/default/index.php',
		//	$this->render("view.php")
		//);

		return $files;
	}

	/**
	 * Validates [[moduleClass]] to make sure it is a fully qualified class name.
	 */
	public function validateModuleClass() {
		//if (strpos($this->moduleClass, '\\') === false || Yii::getAlias('@' . str_replace('\\', '/', $this->moduleClass), false) === false) {
		//    $this->addError('moduleClass', 'Module class must be properly namespaced.');
		//}
		//if (empty($this->moduleClass) || substr_compare($this->moduleClass, '\\', -1, 1) === 0) {
		//    $this->addError('moduleClass', 'Module class name must not be empty. Please enter a fully qualified class name. e.g. "app\\modules\\admin\\Module".');
		//}
	}

	/**
	 * @return boolean the directory that contains the module class
	 */
	public function getModulePath() {
		return Yii::getAlias('@' . str_replace('\\', '/', substr($this->moduleClass, 0, strrpos($this->moduleClass, '\\'))));
	}

	/**
	 * @return string the controller namespace of the module.
	 */
	public function getControllerNamespace() {
		return substr($this->moduleClass, 0, strrpos($this->moduleClass, '\\')) . '\controllers';
	}
}
